Glass-forming machine



Feb. 9, 1932. K. SCHNEEGLUTH GLASS FORMING MACHINE Filed Feb. 24, 1931 2Sheets-Sheet 1 Feb. 9, 1932. K. SCHNEEGLUTH 1,844,185

GLASS FORMING MACHINE Filed 1951 2 Sheets-Sheet 2 to this .finish moldmy Patented Feb. 9, 1932 tJNir-En STATES rA'rEN'r orricn EARLSCIENEEGLUTH, 0F AMBERG, GERMANY, ASSIGNOR 1'0 AMBERGER FLASCHENHUT- TENA. G., 91 AMBERG, GERMANY GIASS-FOBMING momma Application filed February24, 1931, Serial No. 517,392, and in Germany December 1, .1930.

My invention relates to glass-forming machines, andmore particularly tothe blank To the end of forming such depressions l I provide a pair ofoppositely arranged punches which are mounted to be displaced withrespect to the blank, and means con trolled by the opening and closingof the blank mold for advancing and-retracting the punches.

A blank mold will be shown and described which is adapted to be used onan automatic glass-forming machine of the ONeill type but I am notlimited to the adaptation of my invention to this particular machine. Ina machine of the type referredto, as described in U. S. Patent1,315,983, the blank molds are mounted in vertical position on ahorizontal carrier which is rotatable abouta column. The blank moldsthemselves areof two-part construction, with their sections hinged toone another and to the horizontal carrier. Cooperating with the lowerend of each blank mold is a sectionalneck or finish mold, and

novel means is applied.

In a preferred embodiment of my invention I provide a sectional punchsupport which is adapted to be placed on the finish mold and in thissupport I mount slidable punches .in diametrally opposite positions. Thepunches are controlled by camming faces on the blank-mold sections, andconnected to levers which are mounted to rockin the support under theaction ofpull-back springs.

When theblank mold is closedthe levers are moved in'wardlywhile theirsprings are compressed and advance the punches "so that they will.penetrate into the cavity for the neck of the bottle. When the blankmold is opened the punches are retracted by the springs.

In the drawings afiixed to this specification and forming part thereof ablank-mold section and the two punches with their accessories embodyingmy invention are illus- In the drawings Fig. 1 is an elevation of theblank-mold section, one section or the finish mold and one section ofthe plunger support,

Fig. 2 is" an elevation showing one of the support sections, with itsplunger bearing in section along its axis, and

Fig. 3 is a section on the'line lll lll in Fig. 1.

Referring now to the drawings, a is a section' of the blank mold, thecarr1er, the other section, and the means for hinging the sectionstogether and to the carrier, having been omitted. b is one of thefinish-mold sections, and d is one of the support sections,the matingsections 6 and 01, respectively, being shown in Fig. 3. g is the cavityfor the reception of the bottle neck in the finish mold. c is a circularrecess in the front faces of the'vsupport sections 01, d for. thereception of the usual plunger and ring. These parts have not been shownasthey form no part of the present invention. f and f are semi-circulargrooves in the jointing faces of the sections 6 and d, and 1' and t arecorresponding semicircular grooves in the mating sections 6 and d,respectively. It will be understood that bores forming axial extensionsof the grooves t, f and r, f,respectively.' Mounted to slide in theguide ways constltuted by the bores and grooves are plungers i2. ands,with pointed ends is and 4), respectively, the ends being shaped inconformity.

with the desired shape of the depressions in;

the bottle neck. The punches have tapped bores at their ends for thereception of threaded pins Zwith heads 0. Mounted to rock about pins 10and w in recesses e' and e of the respective sections 03 and d arepunch-operating levers n and :20. Each lever at its free end is equippedwith a boss n which is slotted at m for the reception of one of thethreaded .punches'mounted to slide in said guideways, pins Z, the bossesM engaging washers or and means controlled by the opening and flanges onthe heads .0, as best seen in Fig. 2, closing of said blank mold foradvancing and and projecting'from the recesses e and e. retracting saidpunches.

Furthermore each lever is equipped with a 3. In a sectional blank mold asectional spring g in a suitable cavity which is abutted finish moldadapted to be secured in fiX-e'i on the corresponding support sectionand position. with respect to said blank molt, tends to retract the"corresponding punch k sectional support adapted to be placed on or s. asaid finish mold, the sections of said finish The lower ends of thesections of the blank mold and said support together making up mold areequipped with camming faces for guideways in diametrallyoppositepositions the operation of the levers n and w, as shown with respect tothe axis of said blank mold, at a for the section a. The cam faces are abearing block projecting from the jointing recessed at y for thereception of the bosses face of each support section into a recess of nof the respective levers n, and w. the mating sectlon and having a borein con- In operation the section of the finish mold tinuation of thecorresponding guideways in and thesupport are assembled on the plungersaid finish mold and said support, punches and. its ring, not shown, inthe position mounted to slide in said guideways and in the illustratedin Fig. 2, and the blank. mold is bores of said bearing'blocks, andmeans con- 0 closed about them. During the closing of the trolled by theopening and closingof said blank mold the camming faces u engage theblank mold for advancing and retracting said bosses n of the levers nand w and advance punches. I the punches h and 8 into the cavity 9 oftheIn testimony whereof Iaffix my signature.

. finish-mold sections 12. A quota of glass is KARL SCHNEEGLUTH. 2 nowplaced into the blank mold, separated from the punty rod and finished,as described in the said patent, until the blank is ready to betransferred to a blow. mold. When the blank mold is opened the cammingfaces u I 30 release the bosses n, and the springs 95.

through the medium of the levers .n and m, retract the punches h and sfrom the cavities they have formed in the neck of the bottle.

I wish it to be understood that I do not 35 desire to be limited to theexact details of construction shown and described forobviousmodifications will occur to a person skilled in the art. I

In the claims afiixed to this specification 40 no selection otanyparticular modification I a of the invention is intended to theexclusion of other modifications thereof and the right to subsequentlymake claim to any modification not covered by these claims is expressly45 reserved. i I claim 1. In a sectional blank mold a support adapted tobe secured in a fixed position with respect to the sections ofsaid-mold, a pair of 50 punches arranged in diametrally oppositepositions with respect to the axis of saidblank mold and mounted toslide on said-support, anoperating lever connected to each punch, meanson the sections of said mold for mov- 55 mg said levers inwardly, and aspring connected to each lever for moving said levers outwardly withrespect to said blank mold.

2. In a sectional blank mold a sectional finish mold adaptedtobesecuredin a fixed q 60 position with respect to said blank mold, a

sectional support adapted to be placed on said finish mold, the sectionsof said finish mold and said support together making up guide- I ways indiametrally opposite positions with x respect to the axis of said blankmold,

